Finding the Fourth Proportional to 1,291,346.53, 1,781,576.86 and 807,727.93
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Solution
The fourth proportional to 1,291,346.53, 1,781,576.86 and 807,727.93 is: 1,114,363.46
Step by Step Solution
- Step 1: Write the proportion equation
1,291,346.53 : 1,781,576.86 = 807,727.93 : x - Step 2: Convert to fraction form
1,291,346.53/1,781,576.86 = 807,727.93/x - Step 3: Cross multiply
1,291,346.53x = 1,781,576.86 × 807,727.93 - Step 4: Simplify right side
1,291,346.53x = 1,439,029,389,263.70 - Step 5: Solve for x
x = 1,439,029,389,263.70/1,291,346.53 - Step 6: Final answer
x = 1,114,363.46
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.